You will receive 6 bottles of 14 Karat Testing Acid, used to determine the Gold content of the piece being tested. · Each bottle has 1/2 fl oz of acid. · The sturdy plastic bottles maximize safety and allow the user to easily squeeze out one drop at a time. · All bottles have different cap colors to help keep acid karats organized easier · Latex Gloves are recommended with the use of any testing acids for safety · testing instructions included · black testing stone is recommended (sold separate from acids) · 0.5 ounces of test solution per bottle Test solution for 14 karat gold